Heater.



- Patented Apr. 24, I900. J. L. HOLLINGSWURTH.

H E A T E B (Application filed Aug. 23, .1899.)

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(No Model.)

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Patented Apr. 245 i900.-

J. L. HULLINGSWORTH. HEATER (Application fllad Aug. 23, 1899.)

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- WITNESSES.

Patented Apr. 24, I900.

.'J. L, HOLLINGSWORTH. HEATER.

(Application filed Aug. 23, 1899.)

3 Sheets-Sheet a.

(No Model.)

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NITED STATES PATENT OFFICE.

JAMES L. HOLLINGSWORTH, OF NEWBERN, TENNESSEE.

HEATER.

SPECIFICATION forming part of Letters Patent No. 64 dated April 1900-Applioation filed August 28,1899. Serial No. 728,148. (No model.)

To all whom it may concern.-

Be it known that I, JAMES L. HOLLINGS- WORTH, residing at Newborn, inthe county of Dyer and State of Tennessee, have invented certain new anduseful Improvements in Heaters, of which the following is aspecification.

This invention has for its purpose to provide an economical, simple, andeasily-manipulated portable means capable of being used for heating andcooling houses and as a means for drying and curing tobacco and dryingand ventilating grain, coffee, fruit, cottonseed, and other likeperishable staples.

This invention in its general nature comprehends a portable fire-box ofsuitable height and width, havinganatural draft-opening below thefire-box and an offtake arranged as ordinarily and having a supplementaloiftake adapted to convey smoke to the drying-house or other pointswhere it is desired to smoke or dry articles in bulk or separated, saidmain offtake and supplemental offtake or by-pass having suitablevalves,whereby the draft and smoke outlet can be governed at will; andcombined with the aforesaid construction of heater-body and offtakes isa series of continually-coiled air-pipes located within thefire-chamber, having their inlet end connecting with a common air-supplychamber in communication with a blower and their outlets held todischarge into a common pipe which discharges into the supplementalofftake.

My invention also comprehends certain novel features of constructionincluding a Water-jacket surrounding the heating-body, which has anofftake provided with a valve the adjustments of which cause the ofitaketo discharge either into the room to properly keep the atmosphere moist,and to discharge into the ofitake or air-feed pipe for humidizing thetobacco-barn, and to case the tobacco after it has been cured by smokingand drying, the latter result of my invention being a particularlyadvantageous one, as by the use of my invention as a means for heatingthe tobaccoleaves, the tobacco can be instantly humidized after it hasbeen properly smoked or dried, without waiting for a naturalhumidization of the atmosphere, as is necessary in the use of theordinary farm tobacco-curing such purpose the humidizer portion of myinvention is also applicable for keeping the hot air moist that isdisseminated into the various parts of the building when my invention isused as a hot-air heater alone.

This invention also embodies, in combination with the heater and itsofftake proper, a conveniently attached and adjustable means adapted tobe set to connect with the, main draft or offtake and having for itspurpose to provide a more perfectand increased comoustion and a greatereconomy of fuel and also for commingling with the products of combustionatmospheric air in such a manner that the combined mass is mingled anddischarged into the fire-chamber and consu med.

In its subordinate features this invention comprehends certain detailsand novel combinationsof parts, all of which will hereinafter be fullydescribed, and particularly pointed out in the claims, references beinghad to the accompanying drawings, in which- Figure 1 is a verticalsection of my improved heater, taken practically on the line 1 1 of Fig.2. on the line 2 2 of Fig. 1. Fig. 8 is a horizontal section taken onthe line 3 3 of Fig. 1. Fig. 4 is a horizontal section on the line 4 4of Fig. 1. Fig. 5 is a detailed view illustrating the manner ofconnecting the water-space with the air-oiftake. Fig. 6 is adiagraphical view illustrating the manner of using my improvement as ahot-air furnace, and Fig. 7 is a diagraphical view showing the manner ofusing my invention in connection with a tobaccobarn.

In the practical constructionvthe heater is made of sheet or cast metaland comprises a rectangular-shaped body 1, mounted upon casters 2 2,whereby to facilitate the movement of the heater, especially when usedfor drying purposes. The heater-body 1, which in the simplest form,has alike shape throughout, embodies a lower or ash-pit compartment 1, afire-pot 1 and a combustion-chamber 1, which merges with a supplementalcombustion-chamber 1, that forms practically a continuation of thechamber 1, said chamber 1 tapering conically toward the main ofitake anddraft pipe 3, which is providedwith a cutbarn, and while it isespecially useful for' Fig. 2 is a similar view taken ed valve 4 and aspark-arrester diaphragm 5, said pipe also having air-inlets 3, theareaof which is increased or diminished by an adjustable hood 6 for apurpose presently explained. The ash-pit has the usual draft opening 7,closed by the door 7, and the firepot the usual feed-opening. and door,(indi cated by 8.) l V 7 10 indicates a series of continuously-coiledpipes, the coils of which are arranged in horizontal rows and extend thefull width of the combustion-chamber, the lower legs of the series beingdisposed just'over and forming, as it were, the crown of the fire-pot,while the upper ends of said series of pipes terminate at the base ofthe upper or supplemental com-' bustion-chamber, as clearly illustratedin Fig. 1. Thelower or inlet ends of the pipes 10 project through theside of body 1 and communicate with an air-duct 11, common to all of thepipes 10,-while the upper ends of said pipes discharge into acollecting-space 12, with which theair-conveyer flue 13 connects.-

14 indicates a series of air-pipes which form the bottom or grate of thefire-pot, and these pipes project at one end into the air-duct 11 and atthe other end into aduct 15, having an offtake 16, that discharges intothe collecting-duct 12.

17 indicates a blower placed conveniently near the heater and driven byelectric orother mechanical means, the delivery-pipe of which dischargesinto the duct 11.

18 indicates a smoke-flue that connects with the combustion-chamber 1 ata point the: two being continued in a distributingpipe13 which inpractice has its end constructed to receive any suit-able couplingmember, whereby it can be. conveniently and qdetachably joined with thedistributing-flue that carries the air through the house to theregistersin the severalcompartments or with the main receiving-flue of atobacco-curing barn or other drying house or bin.

19 indicates a valved air-pipe that connects with the due 13 and has itsdischarge pro jected into the smoke-fl ue 18, the same acting as aninjector, and is designed for increasing thedraft in said flue 18 whenthe parts are adjusted to cause the smoke to pass intothe said flue 18.

The flue 18 has a cut-off Valve 18, and overits entrant end is placed asparkarrester screen 20. g 7

21 indicates a clearer-blade held to-be operated from the outside by ahandle 21, the.

purpose of. which is to clear the screen 20 of ash or other adheringparticles.

At one side the heater-body has projecting brackets 22', in which isfixedly held a downwardlytapering pipe 23, the lower end of which issoformed asto be conveniently connected with a blower 24, which may bebelated to the blower 17 or separately driven by'any suitable power, itbeing understood thatwhen it is arranged to be driven by the shaft'ofThe i ,and with which a pipe 30 connects. pipe discharges into theair-ofitake pipe 13 blower 17 it can be readily disconnected and heldinert-by slipping the belt 25.

Onthe upper end of the pipe 23 is pivotally supported an elbow 26, whichis arranged to swing in a horizontal plane and has a suitable pendenthandle 27 connected with it,

whereby it can be conveniently swung over to connect with the upper endof the main or natural draft-pipe 3 or be disconnected therefrom, asdesired.

The blower 24. has its outlet-pipe 24: connected with an air-space 28,with which one end of a series of perforated pipes 28 communicate andwhich are horizontally disposed below the grate-pipes, they beingarranged to discharge up between the said as clearly-shown in Fig. 2. a

By providing the heater. with a'means for creating a forced draftsu chasdescribed the capacity of the heater is increased at will, this beingessential for domestic heating in case of extreme cold weather, andparticularly so when the heater is used for drying purposes, where theheat-volume must be under easy control and capable of being quicklyincreased or diminished as the character of the articles to be dried maymake necessary.

By providing the main fine with aireinlets,

grate-pipes,

I which can be readily regulated to permit the ingress of an'increasedor diminished amount l of air, it is manifest that thefcarbon'aceouspor- Ztion of the products of combustion will be thoroughly mixed withthe oxygen, and the said products drawn down under a forced draft,anddischarged up intothe fire-pot and all waste fuel thereby utilized.

29 indicates a closed jacket surrounding the body 1, which forms awater-space having a. feed-opening 29 in the top an-d'an outlet This andis provided with a two-way valve 31.

The object in providing the heater with the external water-space andconnecting it with the air-offtake is to provide a humidizingmeansjwhich can be utilized to humidize the atmosphere of the roomheated by direct radiation' from the heater, as also the hot air thatpasses therefrom. Thus by turning the valve 31 in one direction theclean or moist air from the fluid-space can be discharged into theatmosphere, as indicated in Fig. 5, or, if desired, the steam can bedischarge'd'diin Fig. 6, to render the same operative, fire is built onthe tubular grate-bars, the valve in the main oiftake-pipe is opened,and the valve in the smoke-flue that connects with the air offtake isclosed. Air is then forced through the pipes within the heater, which inits passage therethrough becomes heated and passes off through the flue13 and is disseminated into the various branch pipes.

To humidize the hot air, it is only necessary to turn the valve thatgoverns the escape of the vapor from the jacket 29 to discharge it intothe hot-air offtakes.

While especially advantageous as a heater in cold-weather, it is obviousthat without any change of parts whatever my improved means will asreadily serve to cool the house in summer, as cold air passed throughthe pipes can be as readily disseminated as the hot air, and while Ihave not so illustrated same, it is obvious'that the air-offtake may bepassed through an ice-box or other cold-storage, whereby to cool itbefore it passes into the room.

For curing tobacco, drying grain, 850., my invention is particularlyuseful. In curing tobacco or other smoking process the valve in the mainoiftake is closed and the valve to the supplemental smoke-outlet isopened. In this form the air driven through the pipe-coils is not onlyheated, but also serves, together with the smoke, as a drying means, italso acting as a means for creating apositive and uniform draft throughthe supplemental smoke-flue, which operation is augmented by the valvedjet-pipe that enters the said smoke-flue near its entrant end.

Byproviding the swinging section-pipe member, it is obvious that, shouldit at any time be desired to create a quick and powerful combustion, themain-flue valve can be opened, and a suction-blast secured, which alsoserves as a means for consuming the products of combustion, this beingparticularly desirable when the device is used to generate hot air forheating or drying purposes. When used for heating tobacco, as indicateddiagrammatically in Fig. 7, after the tobacco has been smoked and hot-air dried the fire can be quickly banked or drawn, and cold air,moistened by reason of the escape of the vapor in the water-jacket 29,can be quickly charged into the barn and the tobacco fixed by properhumidization without necessarily Waiting for a natural humidization ofthe atmosphere, as is ordinarily the case.

When it is desired to utilize the heater as a smoke-drier alone, theair-supply can be stopped or the flue 13 cut off by shifting its valveto a closed position.

By arranging the air-circulating pipes as described, it is manifest thatanyone set of pipes can be removed in case of burning out or becomingotherwise disabled, without disconnecting any of the remaining sets, itbeing obvious that the openings to theair-spaces 11- and 12 which theremoved set engaged with can be plugged up and communication between thecombustion-chamber and the spaces 11 and 12 thereby cut off.

The swinging pipe-section and the coa'cting parts that constitute thesmoke-return devices form a part of my heater in its most completeconstruction, and they have therefore been described and illustrated inthis application. Such parts, however, are not herein claimed, as theyform the subject-matter of another application filed by me January 9,1900, Serial No. 906.

Having thus described myinvention, what I claim and desire to secure byLetters Patent, is-

1. Aheater comprisingacombustion-chamber terminating in'an ordinaryofftake, and having a draft at the bottom; an external airspace 11,means for forcing air therein; a series of tubular pipes forming thegrate, one end of said pipes communicating with the space 11; anair-collecting space 15, connected with the opposite ends of thegrate-pipes; a series of horizontally-coiled pipes, independently anddetachably held within the combustion-chamber, their inlet endscommunicating with the air-space 11, a second air-space 12, into whichthe exit ends of the coiled pipes discharge; a pipe connecting thecollecting-spaces 15 and 12, said space 12 having a valved ofttake, allbeing arranged substantially as shown and described.

2. The combination with the heater-body, said body comprising anash-pit; a combustion-chamber, said chamber terminating in a taperingtop; and a valved otftake communicating with the top; of a series ofair-circulating pipes held Within the combustionchamber; means forforcing air into one end of said'pipes; a collecting-space for receivingthe discharge from the pipes, said space having a valved offtake and asupplemental outlet connected with the said valved offtake and thecombustion-chamber, substantially as shown and described.

3. The combinationwith the heater, the aircirculating pipes, a valvedoiftake communicating with the discharge end of the said pipes; the"valved main smoke-oiftake; the supplemental smoke-otftake, communicatingwith the air-offtake at a point beyond its valve; the water-jacket, saidjacket having a vapor-outlet discharging into the air-offtake a valvedinjector-pipe, connected to the airofftake at a point between its valveand inlet, said injector discharging into the supplementalsmoke-oiftake,' all being arranged substantially as shown and described.

J AMES L. I-IOLLINGSWORTl-I.

W'itnesses:

Mrs. J. L. HOLLINGSWORTH, FRED G. DIETERICH.

IIO

